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There are 6 points on the circumference of a circle, the number of straight lines joining their points will be:

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There are 6 points on the circumference of a circle, the number of straight lines joining their points will be:

(A) 30

(B) 15

(C) 12

(D) 20

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1 Answer

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Answer is (B)

Number of lines passing through n points = nC2
Number of lines passing through 6 points

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